摘要
对岩层复杂、产状较陡、岩石软硬不均的岩心机械钻探施工区,在施工中易造成钻孔弯曲,不仅影响钻孔质量,甚至造成钻孔报废。因此,复杂地层的岩心机械钻探施工技术研究可以提高钻探质量,降低成本,提高找矿效果。
In drilling work in complex strata including large dip strata,uneven rocks in hardness,it is easy to make hole deflection,which may affect drill hole quality,even become an abandoned hole,so,the study of drill technique can improve the quality of the drilling work,reduce the drilling cost and raise prospecting result.
出处
《吉林地质》
2008年第4期100-101,共2页
Jilin Geology
关键词
钻探
钻探技术
复杂地层
drill-hole exploration
exploration engineering
complex strata